Doll&#39;s voice



April 9, 1940. s. K'RAKOW'SKI 2,196,679

DoLLS vom:

Filed Aug. 16, 1939l INV ENTOR.

STANLEY KRAKowsK/ BY l M ATTORNEYS Patented 9,1940 i UNITED This invention relates to'sound devices and more particularly to a'y device for producing, two ftones in an articulated sound such as in the Word "una-ma, the device being for usev in dolls and 'i similar toys. ,i v l x An object ofthe invention is to providea sound reproducing device having a sound y chamber which is opened and closed at predetermined ing` tervals to emit sounds of different tones.

Another object is to provide means cooperating with the sound making means for controlling the opening and closingrof the sound chamber."l

A further, object ofthe invention is to provide a sound producing device which maybe easily f mountedin a doll or similar device Iand which' when actuated will imitate the ycry ma-maf of a baby,'reproducing the two different tones ofthat ery. f i

Other objects will beA obvious'y or will appear l during the course ofthe following specification.

In accomplishing vthe objects ofk this invention it has been found most satisfactory to provide a housing adapted to be positioned in` a doll and having rotatably mounted therein a disc withia` serrated periphery bearing against a vibrator mounted on a sounding board. The sounding board serves as the bottom for a sound chamber which has an opening therein and al cover adapted to open and close said opening by means of an actuator operated bycams onthe 'serrated wheel. .v l

, The above and other objects will appear more clearly from the following detailed description v when taken in conjunctionwith the accompanying drawingl which illustrates a preferred embodiment of the" invention. f Y

Figure 1 is a side elevational view of the in-` vention a doll being indicated in dot and dash lines;

Figure'Z is a vertical sectionalview of Athe de vice;

Figure 3 is a sectional viewl on the line 3 3 of Figure 2; and

Figure 4 is a perspective View of the'sound producing means and sound chamber cover actu? ating means.

Like numerals refer tojlike parts throughout the several views. y

The device, in the embodiment of the invention illustrated in the` drawing, comprises a housing I0 having a lower portion Hand an upper section I 2.

A sound chamber I3 is formed by the upper section I2, the sound chamber having a top I4 with an opening I5 therein. The bottom of the sound chamber consists of a sounding board I6. A cover |1 cooperates withwthe opening I5v and is mountedon a spring strip 8vfas'tenedto the upper section l2 which strip tends to hold the cover y in a normally open .position inl relation to the .y opening.

Mountedon the sounding board It` and pro jecting from the undersidethereof is a vibratorv I9.; preferably of a resilient'metal which engages the serrated periphery I2|) of a wheel 2l, so that a lo? sound is made upon turning the wheel 2|. kThe I lperipl'iery 2l) of. the wheel 2| has a portion there-7 of cut away to form a flatsurface 29 having no serrations. The wheel 2Iis iixedly mounted on a 135 crankshaft 22 which in turn isirotatably mounted in the lower portion of the housing III.` A

crank-handle 23 formed-'integrally with saidv l crankshaft extends from the housing I0. y Projecting from one surface of the wheel 2|, are two cams 24 and 25 whichlarespaced from one ,another andare adapted to engage extensions 2 6 .and 21 on one side of a sound chamber cover actuator 28. An arm 30 extending fromthe oppo-f l site fside of the actuator 281s connected to the' 25. cover |.'I by means of a cord' 3|. The actuator28 `ispivotally sup-ported ina mounting 32 by means ofv ears'33 and 34 on the opposite ends/of the actuator 28 forming an axis for said actuator.

'Astop forlimitingfthe pivotal movement of the actuator in one direction is provided. On the outside ofthe housing I0, in the'path of the crank-handle 23, a 'second stop 36which limits the movement of the crank to one revolution in onefdi'r'ection is mounted. v

-In the operation of the device, of this invention,

'the same maybe mounted in a doll in any suitav ble manner, so that thecrank-handle 23 projects to the outside of the dolls body. As shown more particularly in Figures 2 and 4 of the drawing, at' the start of the operation theLcrank-handle 23 is atrest in its vuppermost position on one side of thestop 36, the flat surface 29 of the wheell is adjacent the vibrator I9.v At this time, the actuator 28 is in a horizontalposition, the top sur,-L face 4thereof resting against the` stop '35 the .cover `I'I being in its open position.

ycounter-clockwise direction about its axis which 65 PATIENT ois-FICE moves the arm 30 and cover I'I downwardly` against the tension of the spring I8 closing the opening I5 of the sound chamber I3. n

Engagement of the vibrator I9 with the serrated periphery 20 of the wheel 2l upon further movement of the crank 23 and the crankshaft 22 in a counter-clockwise direction produces the comparatively low sound of mmm the first sound of the syllable of the word ma-ma. since the opening I5 of the sound chamber I3 is closed.

Upon further movement of the crank in la counter-clockwise direction, the low sound of l mmmcontinues until the cam 24 passesfrom engagement with the extension 25 on the actuator 28, at which time the actuator 28 is moved in a clockwise direction by the action of ther spring` .ma-ma until4 the extension 2B is 4engaged by When the cam 25 engagesthe extension 25, the actuator 28 is again pivoted in a counter-clockwise direction on its axis closing the cover I'I against the opening I5. Further rotation of the` ,crankshaft 22 in a counter-clockwise direction produces thecomparatively low sound of mmm untilthe cam 25 passes-from engagement with the extension 26 on one side of the actuator 2t,

at which time the actuator'moves on its axis in a clockwise direction allowing the tension of the spring I8 to move the cover upwardly uncovering the opening '|5. A higher vand louder sound is then emitted from the sound chamber i3 which sound emulates the second sound, ah, -of the' second syllable of the word ma-ma. The crankhandle 23 isI turned further in a counter-clockwise direction until it engages thestop v36.

Due to the spacing'of the cams 2li and t'the iinal sound of ah is of longer duration than the sound of ah in the rst syllable of the word.

When the crank has come to rest against the stop 36,.one complete revolution has been made, the parts of the device being in the position from which they started as .shownV in Figures 2, 3, and 4 of the drawing. In order however, that the device may again be operated, the crank-handle 23 must be turned in 4a clockwise direction. The operation of the parts will be similar to the operating of the same when the crank was turned in a counter-clockwise direction except that ythe cams 25 and 24 willengage the extension 21 on the actuator, 28 to open and close the opening I5A of the sound chamber I3.

It is apparent that the specic illustration described above and set forth in the accompanyving drawing has been given by way ofillustration and not by way of limitation, and Vthat the structure above described is subject to wide Variation and modication without departing from the scope or intent of this invention, all of which variations and modifications are to be includedv within the scope of the appended claims. A lWhat is claimed is:

l. Adolls voice comprising a sound box having an opening therein, a cover for said opening,

a vibrator attached to said sound box, a disc having a `serrated periphery `bearing against said vibrator, means for rotating said disc, cover actuating means and `means on said disc adapted to engage said cover actuating means and move the same, opening `and closing said cover at predetermined intervals. Y

2. A dolls voice comprising a sound box having an opening therein, a cover for said opening, adapted to be vclosed against-spring tension, a vibrator attached to said sound box, a disc having a serrated periphery bearing against said vi- .,brator, means for rotating said disc, pivotally mounted cover actuating means, and two means spaced apart on said disc adapted to successively engagesaid cover actuating means and move the same, opening and closing said cover at pre-determined intervals. i

3. A dolls voice for simulating the word ma-I ma comprising a sound box having an opening thereinaycover for said opening, adapted to be closed against spring tension, a vibrator attached to said sound box, a disc havingy a fiat portion on the periphery thereof, the remainder of the' periphery being serrated, the serrated periphery being adapted to engage said vibrator, means for rotating said disc, pivotally mounted cover actuating means, and two means spaced apart on said disc adapted to successively engage said cover yactuating means and move the same, opening and closing said cover at pre-determined intervals.

4. Ak dolls voice comprising a sound box having an opening therein, a cover for said opening, adapted to be closed against spring tension, a vibrator attached to said sound box, a housing fastened .to Athe sound box, adisc rotatably mounted in said housing said disc having a serrated periphery bearing against said vibrator, means for rotating said disc, a plurality of spaced cams on said disc, cover actuating means pivotally mounted in said housing, two laterally spaced extensions on one side of the axis of said pivotally mounted cover actuating means, adapted to engage said cams, connecting means` one end of which is'fastened to said cover and the opposite end is fastened to'said cover actuator at a point on the side of the axis of said actuator opposite to that of said extensions, and a stop adapted to limit the movement of said actuator in one direction by the spring tensionedk cover.

5. A dolls voice for simulating the word mama comprising` a sound box having an opening therein, acover for said opening, adapted to be closed against spring tension, a vibrator attached to said sound box, a `housing fastened to the sound box, a disc rotatably mounted in said housing said disc having a at portion on the periphery thereof, the remainder of the periphery being serrated, the serrated periphery being adapted to engage `said vibrator, means for rotating said l, disc, two spaced cams projecting from one -surface of said disc, cover actuating means pivotally mounted in said housing, two laterally spaced extensions `on one side of the axis of said pivotally mounted cover` actuating means, adapted to enl gage said cams, connecting means one end of which is fastened to said cover and the opposite end is fastened to said cover actuator at a point on thefside of the axis of said actuator opposite to that of said extensions, and a stop adapted to limit the movement of said actuator in one direction by the spring tensioned cover.

STANLEY KRAKOWSKI. 

